1939~1950 Straits Malaya 5 cents coin

Technical Specifications:
Type 1
Diameter: 16mm
Weight: 1.36 gm.
Composition: .750 silver
Edge: Milled
Mint: Royal Mint, UK., (with i mintmark) Calcutta mint
Year & mintage:
1939 -2,000,000 pcs
1941 -4,000,000 pcs
1941i -Inc above

Type 2
Diameter: 16mm
Weight: 1.36 gm.
Composition: .500 silver
Edge: Milled
Mint: Royal Mint, UK., (with i mintmark) Bombay mint
Year & mintage:
1943 -10,000,000pcs
1945 - 8,800,000 pcs
1945i - 4,600,000 pcs

Type 3
Diameter: 16.2 mm
Weight: 1.41 gm.
Composition: Copper-Nickel
Edge: Milled
Mint: Royal Mint, UK.
Year & mintage:
1948 -30,000,000pcs
1950 - 40,000,000 pcs